San Francisco-based Rubi has raised $7.5 million and secured over $60 million in multi-year customer commitments as it scales technology that turns carbon dioxide into materials.
The funding round was co-led by AP Ventures and FH One Investments. Other participants include Talis Capital, CMPC Ventures, H&M Group, Understorey Ventures and angel investors. The money will help scale production to industrial demonstration, commercialize additional products and advance enzyme performance.
Rubi uses cell-free enzyme technology to transform CO2 into materials like cellulose polymers. The approach differs from traditional fermentation or chemical processes by using specialized enzyme cascades. The company says its modular manufacturing system requires 10 times less capital spending than conventional production and can be deployed anywhere.
In 2025, Rubi more than doubled its commercial partnerships from seven to 15. Partners include Walmart and Reformation. The company signed multi-year offtake term sheets worth over $60 million with fashion brands and manufacturers. It also completed fiber performance testing and entered pilots with partners in consumer packaged goods and aerospace.
“We’ve now demonstrated this technology scales effectively and meets or exceeds customer product standards,” said Neeka Mashouf, Co-Founder and CEO. “The fresh funding will accelerate our scaling and growth to meet strong global demand for modular and affordable manufacturing of essential materials from waste carbon.”
Rubi plans to advance to industrial demonstration scale and produce commercial quantities for customers across textiles and consumer product formulations.
The company added six experts in biocatalysis, AI enzyme engineering and cell-free systems to its scientific advisory board last year.
“Rubi has reached an important transition point, with its technology now demonstrated at pilot scale and clear demand emerging across multiple end markets,” said Kevin Eggers, Partner at AP Ventures.
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